BM78 datasheet(13/60 Pages) MICROCHIP

Part #	BM78

Description	Bluetooth짰 4.2 Dual-Mode Module

PDF	60 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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13 / 60 page

 2016 Microchip Technology Inc.

Advance Information

DS60001380A-Page 13

BM78

2.5

Software Button (SW_BTN)

The Software Button (SW_BTN) input pin powers the

BM78 ON (high) or OFF (low) into the S4 mode. The S4

mode is the Deep-sleep mode and the S2 mode is the

Sleep mode. The S4 mode can only be triggered by the

SW_BTN pin, and the power consumption is lower in

the S4 mode.

Figure 2-2 through Figure 2-4 display the waveforms

for the BM78 in the high and low status, that is access

and link status.

FIGURE 2-2:

SW_BTN TIME (HIGH) AT APP MODE(1,2,3,4,5)

Note 1: MCU can send UART command, refer to Table 2-3.

2: Time duration (475 ms) is for reference purpose only, check the status pin.

3: Reset is ‘no connect’.

4: Time is configured as default setting.

5: Data corresponds to the BM78SPPx5NC2 (ROM variant) module.

BM78 Datasheet(PDF) 13 Page - Microchip Technology